Hussien, Hala Abdel-Moniem Ahmed, and Abdalla Mohamed Ali. “Essential Oil Content and Composition of Some Ocimum Species and Subspecies Grown in Sudan”. University of Khartoum Journal of Agricultural Sciences 29, no. 1 (August 2, 2021). Accessed April 4, 2025. http://onlinejournals.uofk.edu/index.php/uofkjas/article/view/5.